package com.atguigu.gulimall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.constant.ProductConstant;
import com.atguigu.common.to.SkuReductionTo;
import com.atguigu.common.to.SpuBoundTo;
import com.atguigu.common.to.es.SkuEsModel;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.product.entity.*;
import com.atguigu.gulimall.product.feign.CouponFeignService;
import com.atguigu.gulimall.product.feign.SearchFeignService;
import com.atguigu.gulimall.product.feign.WareFeignService;
import com.atguigu.gulimall.product.service.*;
import com.atguigu.gulimall.product.vo.*;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.Date;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;

@Slf4j
@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    private SpuImagesService spuImagesService;

    @Autowired
    private ProductAttrValueService productAttrValueService;

    @Autowired
    private AttrService attrService;

    @Autowired
    private CouponFeignService couponFeignService;

    @Autowired
    private SkuInfoService skuInfoService;

    @Autowired
    private SkuImagesService skuImagesService;

    @Autowired
    private SkuSaleAttrValueService skuSaleAttrValueService;
    
    @Autowired
    private WareFeignService wareFeignService;
    
    @Autowired
    private BrandService brandService;
    
    @Autowired
    private CategoryService categoryService;

    @Autowired
    private SearchFeignService searchFeignService;



    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    //TODO 高级篇完善
    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {
        //1、保存spu基本信息 pms_spu_info
        SpuInfoEntity spuInfoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo, spuInfoEntity);
        spuInfoEntity.setCreateTime(new Date());
        spuInfoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(spuInfoEntity);

        //2、保存spu的描述图片集 pms_spu_info_desc
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity spuInfoDescEntity = new SpuInfoDescEntity();
        spuInfoDescEntity.setSpuId(spuInfoEntity.getId());
        spuInfoDescEntity.setDecript(String.join(",", decript));

        //3、保存spu图片集 pms_spu_images
        List<String> images = vo.getImages();
        spuImagesService.saveImageInfo(spuInfoEntity.getId(), images);

        //4、保存spu规格参数 pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(attr.getAttrId());
            AttrEntity id = attrService.getById(attr.getAttrId());
            valueEntity.setAttrName(id.getAttrName());
            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            valueEntity.setSpuId(spuInfoEntity.getId());

            return valueEntity;
        }).collect(Collectors.toList());
        productAttrValueService.saveProductAttr(collect);

        //5、保存spu的积分信息 gulimall_sms-> sms_spu_bounds
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds, spuBoundTo);
        spuBoundTo.setSpuId(spuInfoEntity.getId());
        R r = couponFeignService.save(spuBoundTo);
        if (r.getCode() != 0) {
            log.error("远程调用失败");
        }

        //6、保存当前spu对应的所有sku信息;
        List<Skus> skus = vo.getSkus();
        if (skus != null && skus.size() > 0) {
            skus.forEach(item -> {
                String defaultImg = "";
                for (Images image : item.getImages()) {
                    if (image.getDefaultImg() == 1) {
                        defaultImg = image.getImgUrl();
                    }
                }
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item, skuInfoEntity);
                skuInfoEntity.setBrandId(spuInfoEntity.getBrandId());
                skuInfoEntity.setCatalogId(spuInfoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(spuInfoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);

                //6.1） sku的基本信息; pms_sku_info
                skuInfoService.saveSkuInfo(skuInfoEntity);

                Long skuId = skuInfoEntity.getSkuId();
                List<SkuImagesEntity> imagesEntities = item.getImages().stream()
                        .map(images1 -> {
                            SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                            skuImagesEntity.setDefaultImg(images1.getDefaultImg());
                            skuImagesEntity.setImgUrl(images1.getImgUrl());
                            skuImagesEntity.setSkuId(skuId);
                            return skuImagesEntity;
                        }).filter(entity -> {
                            return !StringUtils.isNotEmpty(entity.getImgUrl());
                        }).collect(Collectors.toList());

                //6.2)  sku的图片信息; pms_sku_images
                skuImagesService.saveBatch(imagesEntities);

                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, attrValueEntity);
                    attrValueEntity.setSkuId(skuId);

                    return attrValueEntity;
                }).collect(Collectors.toList());

                //5.3）、sku的销售属性信息：pms_sku_sale_attr_value
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);

                //6.4)  sku的优惠、满减等信息; gulimall_sms -> sms_sku_ladder\ sku_full_reduction\ sms_member_price
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item, skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                skuReductionTo.setFullPrice(skuReductionTo.getFullPrice() == null ? new BigDecimal("0") : skuReductionTo.getFullPrice());
                if (skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1) {
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    if (r1.getCode() != 0) {
                        log.error("远程保存sku优惠信息失败");
                    }
                }
            });
        }
    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity spuInfoEntity) {
        this.baseMapper.insert(spuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();
        String key = (String) params.get("key");
        if(StringUtils.isNotEmpty(key)){
            wrapper.and((w) -> {
                w.eq("id",key).or().like("spu_name",key);
            });
        }
        String status = (String) params.get("status");
        if(!StringUtils.isEmpty(status)){
            wrapper.eq("publish_status",status);
        }
        String brandId = (String) params.get("brandId");
        if(!StringUtils.isEmpty(brandId)&&!"0".equalsIgnoreCase(brandId)){
            wrapper.eq("brand_id",brandId);
        }
        String catelogId = (String) params.get("catelogId");
        if(!StringUtils.isEmpty(catelogId)&&!"0".equalsIgnoreCase(catelogId)){
            wrapper.eq("catalog_id",catelogId);
        }
        IPage<SpuInfoEntity> page = this.page(new Query<SpuInfoEntity>().getPage(params), wrapper);
        return new PageUtils(page);
    }

    @Override
    public void up(Long spuId) {

        //1、查出当前spuid对应的所有sku信息
        List<SkuInfoEntity> skus = skuInfoService.getSkusBySpuId(spuId);
        List<Long> skuIds = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());

        //调用远程仓储服务，提前查出来,避免循环查库
        Map<Long, Boolean> stockMap = null;
        // TODO 1、发送远程调用，库存系统查询是否有库存
        try{
            TypeReference<List<SkuHasStockVo>> typeReference = new TypeReference<List<SkuHasStockVo>>(){};
            R skuHasStock = wareFeignService.getSkuHasStock(skuIds);
            stockMap = skuHasStock.getData(typeReference).stream().collect(Collectors.toMap(SkuHasStockVo::getSkuId,SkuHasStockVo::getHasStock));
        }catch(Exception e){
            log.error("调用远程服务查询异常,原因为{}",e);
        }

        //封装attrs
        //TODO 4 查询当前sku所有可以被检索的规格属性
        List<ProductAttrValueEntity> attrsBySpuId = productAttrValueService.getAttrsBySpuId(spuId);
        List<Long> attrIds = attrsBySpuId.stream().map(ProductAttrValueEntity::getAttrId).collect(Collectors.toList());
        HashSet<Long> set = attrIds.stream().filter(attrId -> {
            AttrEntity attrEntity = attrService.getById(attrId);
            return attrEntity.getSearchType() == 1;
        }).collect(Collectors.toCollection(HashSet::new));

        List<SkuEsModel.Attrs> attrsList = attrsBySpuId.stream().filter(attrValueEntity -> {
            return set.contains(attrValueEntity.getAttrId());
        }).map(attrValueEntity -> {
            SkuEsModel.Attrs attrs = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(attrValueEntity, attrs);
            return attrs;
        }).collect(Collectors.toList());

        //封装每个sku信息
        Map<Long,Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProducts  = skus.stream().map(sku -> {
            SkuEsModel skuEsModel = new SkuEsModel();
            BeanUtils.copyProperties(sku, skuEsModel);

            // skuPrice skuImg
            skuEsModel.setSkuPrice(sku.getPrice());
            skuEsModel.setSkuImg(sku.getSkuDefaultImg());

            // hasStock hotScore
            if (finalStockMap == null) {
                skuEsModel.setHasStock(true);
            } else {
                skuEsModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }
            // todo 2、热度评分。0
            skuEsModel.setHotScore(0L);

            // brandName brandImg
            //todo 3、查询品牌和分类的名字信息
            BrandEntity brand = brandService.getById(sku.getBrandId());
            skuEsModel.setBrandName(brand.getName());
            skuEsModel.setBrandImg(brand.getLogo());
            //  catalogName
            CategoryEntity category = categoryService.getById(sku.getCatalogId());
            skuEsModel.setCatalogName(category.getName());

            //   private Long attrId;
            //   private String attrName;
            //   private String attrValue;
            //设置检索属性
            skuEsModel.setAttrs(attrsList);
            return skuEsModel;
        }).collect(Collectors.toList());

        //t远程调用上架商品
        //todo 5 将数据发送给es保存
        R r = searchFeignService.productStatusUp(upProducts);
        if(r.getCode() == 0){
            baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());
        }else {
            //远程调用失败
            //todo 7、重复调用？接口幂等性；重试机制？xxx
        }
    }
}